Climate scientists have developed sophisticated computer models to estimate future climate change. Climate models incorporate detailed mathematical descriptions of the atmosphere, oceans, land, and ice.

Models also incorporate the results of human decisions, some of the biggest unknowns in estimating future climate. Models indicate that our choices now will significantly impact future climate.

How do climate models work? How are they tested? What causes climate change? And, how will our decisions affect the climate? Explore the answers to these questions using the interactive below.